Home / 1,398,004.33-2,097,011.97-425,378.34

Finding the Fourth Proportional to 1,398,004.33, 2,097,011.97 and 425,378.34

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Solution

The fourth proportional to 1,398,004.33, 2,097,011.97 and 425,378.34 is: 638,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,004.33 : 2,097,011.97 = 425,378.34 : x
  2. Step 2: Convert to fraction form
    1,398,004.33/2,097,011.97 = 425,378.34/x
  3. Step 3: Cross multiply
    1,398,004.33x = 2,097,011.97 × 425,378.34
  4. Step 4: Simplify right side
    1,398,004.33x = 892,023,470,758.73
  5. Step 5: Solve for x
    x = 892,023,470,758.73/1,398,004.33
  6. Step 6: Final answer
    x = 638,069.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.